Molecular engineering of enamine-based small organic compounds as hole-transporting materials for perovskite solar cells

2019 ◽  
Vol 7 (9) ◽  
pp. 2717-2724 ◽  
Author(s):  
Maryte Daskeviciene ◽  
Sanghyun Paek ◽  
Artiom Magomedov ◽  
Kyoung Taek Cho ◽  
Michael Saliba ◽  
...  

Optimization of the structure of hole transporting material leads to over 19% efficiency.

Solar RRL ◽  
2021 ◽  
Author(s):  
Jianxing Xia ◽  
Marco Cavazzini ◽  
Cansu Igci ◽  
Maria Cristina Momblona Rincón ◽  
Simonetta Orlandi ◽  
...  

2019 ◽  
Vol 7 (18) ◽  
pp. 5235-5243 ◽  
Author(s):  
Arthur Connell ◽  
Zhiping Wang ◽  
Yen-Hung Lin ◽  
Peter C. Greenwood ◽  
Alan A. Wiles ◽  
...  

Organic hole-transporting materials (HTM) have shown excellent ability in achieving high efficiency perovskite solar cells.


2018 ◽  
Vol 6 (14) ◽  
pp. 5944-5951 ◽  
Author(s):  
R. Sandoval-Torrientes ◽  
I. Zimmermann ◽  
J. Calbo ◽  
J. Aragó ◽  
J. Santos ◽  
...  

High efficiency (18.1%) perovskite solar cells are demonstrated by using a hole transporting material with very low reorganization energy (λ).


Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2249
Author(s):  
Sanghyun Paek

Recently, perovskite solar cells have been in the spotlight due to several of their advantages. Among the components of PSCs, hole transporting materials (HTMs) re the most important factors for achieving high performance and a stable device. Here, we introduce a new D–π–D type hole transporting material incorporating Tips-anthracene as a π–conjugation part and dimethoxy-triphenylamine as a donor part (which can be easily synthesized using commercially available materials). Through the measurement of various optical properties, the new HTM not only has an appropriate energy level but also has excellent hole transport capability. The device with PEH-16 has a photovoltaic conversion efficiency of 17.1% under standard one sun illumination with negligible hysteresis, which can be compared to a device using Spiro_OMeTAD under the same conditions. Ambient stability for 1200 h shown that 98% of PEH-16 device from the initial PCE was retained, indicating that the devices had good long-term stability.


2021 ◽  
Author(s):  
Yang Cheng ◽  
Quanping Wu ◽  
Ming Luo ◽  
Haolin Wang ◽  
Song Xue ◽  
...  

As the sandwiched hole transporting materials (HTMs) layers are in direct contact with up-coated perovskite layer and bottom electrode in p-i-n structured perovskite (i-PSCs), the film quality of HTMs determines...


2016 ◽  
Vol 94 (4) ◽  
pp. 352-359 ◽  
Author(s):  
Andrew M. Namespetra ◽  
Arthur D. Hendsbee ◽  
Gregory C. Welch ◽  
Ian G. Hill

Three low-cost propeller-shaped small molecules based on a triphenylamine core and the high-performance donor molecule 7,7′-[4,4-bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b′]dithiophene-2,6-diyl]bis[6-fluoro-4-(5′-hexyl-[2,2′-bithiophen]-5-yl)benzo[c][1,2,5]thiadiazole] (DTS(FBTTh2)2) were investigated as hole-transporting materials in perovskite solar cells. Each hole-transporting material was designed with highly modular side arms, allowing for different bandgaps and thin-film properties while maintaining a consistent binding energy of the highest occupied molecular orbitals to facilitate hole extraction from the perovskite active layer. Perovskite solar cell devices were fabricated with each of the three triphenylamine-based hole-transporting materials and DTS(FBTTh2)2 and were compared to devices with 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD) hole-transporting layers. Each of our triphenylamine hole-transporting materials and DTS(FBTTh2)2 displayed surface morphologies that were considerably rougher than that of spiro-OMeTAD; a factor that may contribute to lower device performance. It was found that using inert, insulating polymers as additives with DTS(FBTTh2)2 reduced the surface roughness, resulting in devices with higher photocurrents.


2020 ◽  
Vol 4 (12) ◽  
pp. 6188-6195
Author(s):  
Peng Huang ◽  
Adrián Hernández ◽  
Samrana Kazim ◽  
Javier Ortiz ◽  
Ángela Sastre-Santos ◽  
...  

The synthesis and semiconducting properties of thienyl-triphenylamine tetrasubstituted zinc(ii) phthalocyanine and its integration as a dopant-free hole transporting material in perovskite solar cells. Competitive performance and excellent chemical stability were obtained.


2018 ◽  
Vol 6 (21) ◽  
pp. 10057-10063 ◽  
Author(s):  
Bin-Bin Cui ◽  
Ning Yang ◽  
Congbo Shi ◽  
Shuangshuang Yang ◽  
Jiang-Yang Shao ◽  
...  

Better planarity and conjugation of hole-transporting materials resulting in good charge extraction and transport efficiently improve the performance of perovskite solar cells.


2017 ◽  
Vol 5 (4) ◽  
pp. 1348-1373 ◽  
Author(s):  
Pooja Agarwala ◽  
Dinesh Kabra

Development of triphenylamine (TPA) based hole-transporting-materials (HTMs) leading to highTg, higher morphological stability and longevity of dye-sensitized and perovskite solar cells.


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